Vulnerability · Published Feb 24, 2022 · Assigned by mitre

CVE-2022-25638

Medium 6.5

In plain English

A medium-severity security flaw in the wolfssl package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)0.6%top 49.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12wolfssl5.2.0-1DEBIAN-CVE-2022-25638
Debian:13wolfssl5.2.0-1DEBIAN-CVE-2022-25638
Ubuntu:22.04:LTSwolfsslno fix listedUBUNTU-CVE-2022-25638

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References